87264811 has 2 divisors, whose sum is σ = 87264812. Its totient is φ = 87264810.

The previous prime is 87264809. The next prime is 87264817. The reversal of 87264811 is 11846278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87264811 - 2¹ = 87264809 is a prime.

Together with 87264809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87264817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43632405 + 43632406.

It is an arithmetic number, because the mean of its divisors is an integer number (43632406).

Almost surely, 2^87264811 is an apocalyptic number.

87264811 is a deficient number, since it is larger than the sum of its proper divisors (1).

87264811 is an equidigital number, since it uses as much as digits as its factorization.

87264811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 37.

The square root of 87264811 is about 9341.5636271451. The cubic root of 87264811 is about 443.5538815707.

The spelling of 87264811 in words is "eighty-seven million, two hundred sixty-four thousand, eight hundred eleven".